Process and apparatus for separating metals and ores.



1%. 834,722. PATENTBD 001?. so, 1906.

T. GROBSBBCK. v PROCESS AND APPARATUS FOR SEPARATlNGyMBTALS AND 0112s.

APPLICATION FILED DEG. 26. 1905.

nomus Pirtns cc. WASHINGTON, m

NITEI) STATES PATENT OFFICE.

TELFORD GROESBECK, OF CINCINNATI, OHIO. PROCESS AND APPARATUS FORSE'PARATIN'G METALS AND QRES.

Specification of Letters Patent.

Patented 0st. 30,1906.

f To all whom it mwy concern:

Be it known that I, TELFORD: Gnonsnnox,

metals and ores from sand and other gangue or waste materials. One ofits objects is to provide an improved process for separating eavy metalsand ores from waste material.

Another object is to provide suitable apparatus for carrying out suchprocess.

Another object is to provide simple and efficient apparatus for suchpurpose which can be readily provided and erected at inaccessible mininglocalities.

It further consists in certain details of form, combination, andarrangement, all of which will be more fully set forth in thedescription of the drawings, in which Figure 1 is a central verticalsection through my improved apparatus online 1) e of Fig. 2. Fig. 2 is acentral vertical section on line to w of Fig. 2. Fig. 3 is a frontelevation of the same.

A re resents a cylindrical chamber or receptaci; adapted to be rotatedslowly upon a horizontal axis.

B re resents a shaft mounted in the bearings b in a base or frame C. Thechamber A is mounted upon the end of shaft B and ada ted to be carriedand rotated by said sha t. The shaft B may be driven by power or byhand. If the apparatus be small, a Ilgand-crank may be attached directlyto shaft ed on shaft B, and a secondary shaft E, provided with a gear 6,meshing with gear D, is

turned by hand by means of crank F.

G represents a 'awl en aging a ratchet- Wheel g on shaft and which ispreferably employed to lock shaft E from turning in the reversedirection.

H represents a door held closed by a latch h. This door serves to admitthe material to be treated and to discharge the waste material aftertreatment.

I represents a door in the face or end of the chamber or cylinder A,located near the axis itherlpof and held in its closed position by a atea.

In the preferred form a gear D is mount- In practice the chamber isfilled with ma..- terial to be treated tov a point a. littl eabove its.axis, as indicated F1 1.. The material to be treated may be cit erwet.or dry. I preferably, however, employ therewith sufficient water tocause the particles to move freely relative to each other. After asufficient quantity of material has been admitted the doors H I areclosed and latched and the cylinder or chamber given one or two completerevolutions, which causes the materials of different specific gravity toseparate. Those of greater specific gravity, such as gold, &c., willaccumulate in a circular layer or strata about the axis of revolution,as indicated at a, Fig. 1, while the material of less specific gravitywill arrange itself nearer the periphery of the chamber. The revolutionof chamber A being stopped with the door I above the axis, this door maybe opened and the valuable concentrates removed with a suitable scoop orother means. The balance of'the material is'then discharged through thedoor H, which is opened and the cylinder turned to discharge the waste,whereupon the cylinder is ready to be recharged. Should more material becharged into chamber A than indicated in Fig. 1, the diameter of thelayer of concentrates would be increased.

I believe I am the first to employ the principle and provide anapparatus in which the concentrates are gathered to a horizontal axis ofrotation.

The mechanism herein shown is capable of considerablemodification'without departing from the principle of my invention.

Having described my invention, what I claim is 1. The rocess ofseparating metals or ores of high specific gravity from waste material,which consists in charging a receptacle adapted to be rotated upon asubstantially horlzontal axis with the material to be treated to a pointabove the axis of rotation of said receptacle, rotating said receptacleslowly one or more complete revolutions, thereby causing the material ofhigh specific gravity to concentrate about the axis of rotation,removing the concentrate so formed, and discharging the waste material.

2. The process of se arating valuable metals and ores of hig specificgravity which consists in slowly rotating a body of the material to betreated about a substantially horizontal axis whereby the material ofhighspecific gravity is caused to concentrate about the axis ofrotation.

3. An ap aratus for separating metals and ores of high specific gravityconsisting of a receptacle adapted to be rotated slowly about asubstantially horizontal axis, a chargingdoor adapted to be closed andlatched, and a door near the axis of rotation of said receptacle adaptedto be closed and latched and through which the concentrates can bereached and removed.

4. An apparatus for separating metals and ores of hlgh specific gravity,a receptacle j ournaled and adapted to be rotated upon a 15substantially horizontal axis, a charging-door located near theperiphery of said receptacle and adapted to be closed and latched, and adoor for the removal of concentrates located.

at one side of the receptacle near the axis of 20 rotation.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

TELFORD GROESBECK.

Witnesses:

HERMAN J. GROESBECK, C. W. MILES.

